Moved modals inline properties to variables.less

BS3 commit 2e6fcefc5ca6aa3301f35b0600d963f82f1eb62a
remove the glyphicon example from nav-tabs-google
set cursor to not-allowed for disabled elements. issues fixed for nav-justified on pills on android default browser.

BS3 commits a36f444c2567032b200ca36bee006c6e05a0b2c8,
61ac20ebb5f30094d287048300348d58d5622afd